Find the value of the variables leave answer in simplest radical form

Answer:
The Answer is 8
Step-by-step explanation:
1) C2-B2=A2
C2=100 because 10 squared is 100 or 10x10= 100
B2=36 because 6 squared is 36 or 6x6=36
2) Subtract
100-36=64
√(64)=8
Your answer is 8.